Meskipun ini merupakan efek sederhana, masih perlu diakumulasikan dan direkam;
Kode sumber adalah sebagai berikut:
<select id="myselect1"> <option value="">― ―</option> <option value="2015">2015</option> <option value="2014">2014</option> <option value="2013">2013</option> <option value="2012">2012</option></select><br><br><select id="myselect2"> <option value="">― - </option> <Option value = "2015"> 2015 </ption> <option value = "2014"> 2014 </option> <option value = "2014"> 2014 </tiption> <option value = "2014"> 2014 </option> <Option value = "2013"> 2013 </option> <Option> <Nilai NEW = "2012"> </Option> </Option> Option> var bulan = time.getMonth ()+1; var day = time.getday (); if (bulan> 5 && day> 1) {var objselect = document.geteLementById ("myselect2"); objselect.options.add (opsi baru ("2016", "2016"), 1); objselect.options.remove (5); } if (bulan> 7 && day> 1) {var objselect = document.geteLementById ("myselect1"); objselect.options.add (opsi baru ("level 2016", "level 2016"), 1); objselect.options.remove (5); }